The objectives of this Decision are to:
(a) reduce the number of large-aeroplane accidents and serious incidents where aeroplane performance is a causal factor, while harmonising the use of reported runway surface conditions in aeroplane performance assessments;

(b) reflect the state of the art in large-aeroplane certification by selecting non-complex, non-controversial, and mature items;

(c) address three safety recommendations (SRs) in the areas of turbopropeller vibrations and windshield systems; and

(d) better harmonise the Certification Specifications and Acceptable Means of Compliance for Large Aeroplanes (CS-25) with the corresponding related International Civil Aviation Organization (ICAO) Standards and Recommended Practices (SARPs) and Federal Aviation Administration (FAA) Advisory Circulars (ACs).

This Decision amends CS-25 to:
(a) upgrade the certification standards for computing take-off and landing performance (including at the time of arrival);

(b) require that turbopropellers on large aeroplanes are equipped with a vibration indication system;

(c) introduce acceptable means of compliance (AMC) on the investigation of propeller vibrations during descent to ensure that certain conditions are addressed;

(d) ensure that applicants fully define and control the material strength and other properties that are used in part fabrication methods, considering the unique, product-specific combinations of materials and/or processes, and/or methods of manufacture and assembly;

(e) ensure that applicants properly address windshield system failure conditions that may have structural effects; and

(f) update a reference table in AMC 25 Subpart H; introduce references to FAA AC 25-17A ‘Transport Airplane Cabin Interiors Crashworthiness Handbook’, and correct editorial errors.

The amendments are expected to:

• increase the current level of safety by addressing three SRs;
• improve harmonisation with the related FAA standards and ICAO SARPs on aeroplane performance assessment; and
• have some positive economic impacts and no social or environmental impacts.

The objective of this rulemaking task is to maintain a high level of safety as regards services and procedures in air navigation.

Common rules for the provision of flight information service (FIS), which includes aerodrome flight information service (AFIS), have been established with the adoption of Commission Implementing Regulation (EU) 2020/469, applicable as of 27 January 2022. The introduction of radiotelephony (RT) phraseologies for the provision of FIS/AFIS is necessary to ensure unambiguous air–ground voice communication between air traffic services (ATS) units and pilots, thus increasing safety.

A complete and explicit set of RT phraseologies for the provision of FIS and AFIS will provide safety benefits throughout the EU, especially for cross-border flights which receive such services, by considerably reducing the possibility for misinterpretations in air–ground voice communications between ATS units and pilots.

Decision 2021/014/R introduces the necessary amendments to the Annex to ED Decision 2013/013/R of 17 July 2013 adopting the AMC and GM to Commission Implementing Regulation (EU) No 923/2012 on Standardised European Rules of the Air (the SERA IR), and more specifically to Appendix 1 to AMC1 SERA.14001 thereto, by introducing the following:

• a comprehensive set of AFIS RT phraseologies for air–ground voice communications between pilots and AFIS units;
• some additional RT phraseologies applicable to both FIS and AFIS to address specific operational situations; and
• structural amendments to the aforementioned Appendix 1 to clearly indicate which RT phraseologies are applicable when different ATS (air traffic control (ATC) service and/or FIS, including AFIS) are provided, thus supporting their harmonised use in a safe manner.